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  1. # Neynar
  2.  
  3. ## Docs
  4.  
  5. - [Address User Score Contract](https://docs.neynar.com/docs/address-user-score-contract.md): Get user quality score for an address connected to a Farcaster profile.
  6. - [Build Farcaster Frames & Analytics with Neynar & Frog](https://docs.neynar.com/docs/analytics-frame-neynar-frog.md): In this guide, we’ll learn how to make a frame with the neynar SDK and Frog.fm, within a few minutes! For this demo, it will be a simple rock-paper-scissors game but it will give you an idea of how to create multi-page frames, interact with buttons, and get analytics for your frame with no extra effort.
  7. - [Archive Casts](https://docs.neynar.com/docs/archiving-casts-with-neynar.md): Archiving Farcaster data with Neynar
  8. - [Build Interactive Farcaster Frames with Neynar](https://docs.neynar.com/docs/building-frames.md): Build frames 100x quicker than starting from scratch
  9. - [Cast Action with Analytics](https://docs.neynar.com/docs/cast-action-with-analytics-neynar.md): In this guide, we’ll make a cast action with the neynar SDK and frog.fm, within a few minutes! The cast action will fetch the follower count of the cast's author using its fid and display it.
  10. - [Cast From Inside a Frame](https://docs.neynar.com/docs/casting-from-a-frame.md): In this guide, we'll look at how to build a frame using which people can create casts and perform other actions on the Farcaster app.
  11. - [Find User Subscriptions with Neynar Hypersub](https://docs.neynar.com/docs/common-subscriptions-fabric.md): Finding Hypersub subscriptions on Social Token Protocol (STP) using Neynar
  12. - [Bot Replying with Frames](https://docs.neynar.com/docs/create-a-farcaster-bot-to-reply-with-frames-using-neynar.md): In this guide, we’ll take a look at how to create a Farcaster bot that replies to specific keywords with a frame created on the go specifically for the reply!
  13. - [Cast Stream](https://docs.neynar.com/docs/create-a-stream-of-casts.md): Fetch stream of casts with Farcaster hubs
  14. - [Create in UI](https://docs.neynar.com/docs/create-farcaster-bot-ui.md): Create a new Farcaster agent directly in Neynar dev portal
  15. - [Create Multi Step Cast Action](https://docs.neynar.com/docs/create-multi-step-cast-action.md): In this guide, we’ll make a multi-step cast action, within a few minutes! The cast action will go ahead and return a frame which will show the cast hash.
  16. - [Create Transaction Frames](https://docs.neynar.com/docs/create-transaction-frames.md)
  17. - [Create Farcaster Mini App (v2 frame) in < 60s](https://docs.neynar.com/docs/create-v2-farcaster-frame-in-60s.md): Create a v2 Farcaster frame in less than 60 seconds
  18. - [Deploy a Token on Base with 1 API Call](https://docs.neynar.com/docs/deploy-token-on-base-with-api-call.md): This guide provides a step-by-step process to deploy a fungible token on the Base network using Neynar's API. The deployment process is simplified to a single API call, eliminating the need for developers to write Solidity code or handle on-chain transaction signing. Neynar covers the on-chain deployment fees and assigns the specified owner address as the token owner.
  19. - [Farcaster Actions Spec](https://docs.neynar.com/docs/farcaster-actions-spec.md)
  20. - [Farcaster Bot with Dedicated Signers](https://docs.neynar.com/docs/farcaster-bot-with-dedicated-signers.md): Create a Farcaster bot on Neynar in a few quick steps
  21. - [Farcaster For You Feed](https://docs.neynar.com/docs/feed-for-you-w-external-providers.md): Retrieve a personalized For You feed for a user
  22. - [Casts by Embed in Farcaster](https://docs.neynar.com/docs/fetch-casts-by-embed-in-farcaster.md): Show Farcaster casts that have attachments with Neynar
  23. - [Relevant Holders for Coins on Base](https://docs.neynar.com/docs/fetch-relevant-holders-for-coin-on-base.md): This guide provides a comprehensive overview of how to use the Neynar API to fetch relevant holders of a fungible token on the Base network.
  24. - [Fetch signers](https://docs.neynar.com/docs/fetch-signers-1.md): The following guides show how to fetch signers if you don't have access to the custody address mnemonic of the user
  25. - [Fetch Signers - Backend](https://docs.neynar.com/docs/fetch-signers-backend.md): This guide demonstrates how to get a list of signers for an account if the developer has the user's mnemonic/account private key (If not check: [Frontend (Wallet Integration)](docs/fetch-signers-frontend-wallet-integration))
  26. - [Fetch Signers - Frontend (Wallet Integration)](https://docs.neynar.com/docs/fetch-signers-frontend-wallet-integration.md): This guide demonstrates how to get a list of signers for an account if the developer can't access the user's mnemonic. (If the developer has access to the mnemonic, check: [Backend](/docs/fetch-signers-backend))
  27. - [Fetch & Display Farcaster Feeds with Neynar API](https://docs.neynar.com/docs/fetching-casts-from-memes-channel-in-farcaster.md): Show casts from a Farcaster channel with Neynar
  28. - [Notifications in Channel](https://docs.neynar.com/docs/fetching-channel-specific-notification-in-farcaster.md): Show notifications from a specific channel for a Farcaster user
  29. - [User by Wallet Address](https://docs.neynar.com/docs/fetching-farcaster-user-based-on-ethereum-address.md): Find Farcaster user profile based on ethereum address
  30. - [Follow NFT Holders](https://docs.neynar.com/docs/following-all-farcaster-users-owning-cryptopunk.md): How to follow all Farcaster users who own a certain NFT
  31. - [Farcaster Frames with Analytics using Neynar & Framejs](https://docs.neynar.com/docs/framejs-farcaster-frames.md): In this guide, we’ll learn how to make a frame with the neynar SDK and Framejs, within a few minutes! For this demo, it will be a simple rock-paper-scissors game but it will give you an idea of how to create multi-page frames, interact with buttons, and get analytics for your frame with no extra effort.
  32. - [From Kafka Stream](https://docs.neynar.com/docs/from-kafka-stream.md): Ingest hydrated events from a hosted Kafka stream (as compared to dehydrated events from gRPC hub)
  33. - [Getting Started](https://docs.neynar.com/docs/getting-started-with-neynar.md): Start building on Farcaster with Neynar
  34. - [Storage Units Allocation](https://docs.neynar.com/docs/getting-storage-units-allocation-of-farcaster-user.md): Fetch data about a user's storage allocation on Farcaster network with Neynar
  35. - [Create a Farcaster Account with Wallet Integration](https://docs.neynar.com/docs/guide-to-creating-a-farcaster-account-with-wallet-integration.md): This document outlines the steps to successfully create a Farcaster account without having a end user mnemonic.
  36. - [Frame Validation](https://docs.neynar.com/docs/how-to-a-frame-action-against-farcaster-hub-with-neynar-api.md): Validate incoming frame actions to get genuine data
  37. - [Frame Quickstart](https://docs.neynar.com/docs/how-to-build-farcaster-frames-with-neynar.md): Build it 10x quicker than starting from scratch
  38. - [Choose Among Data Products](https://docs.neynar.com/docs/how-to-choose-the-right-data-product-for-you.md): Pick between pulling or pushing data in the format that works for you
  39. - [React client](https://docs.neynar.com/docs/how-to-create-a-client.md): This guide will look at creating a Farcaster client using Next.js and the Neynar React SDK.
  40. - [Create Via Script](https://docs.neynar.com/docs/how-to-create-a-farcaster-bot.md): Create a Farcaster bot on Neynar in a few quick steps
  41. - [Create new Farcaster Account](https://docs.neynar.com/docs/how-to-create-a-new-farcaster-account-with-neynar.md): Currently, this API is allowlisted. Please get in touch with us if you wish to access this feature.
  42. - [Dynamic Frame Creation](https://docs.neynar.com/docs/how-to-create-frames-using-the-neynar-sdk.md): Take a look at how to create frames on the fly using our SDK
  43. - [Programmatic Webhooks](https://docs.neynar.com/docs/how-to-create-webhooks-on-the-go-using-the-sdk.md): Neynar webhooks are a way to receive real-time updates about events on the Farcaster protocol. You can use webhooks to build integrations that respond to events on the protocol, such as when a user creates a cast or when a user updates their profile.
  44. - [Customize SIWN](https://docs.neynar.com/docs/how-to-customize-sign-in-with-neynar-button-in-your-app.md): Customize the Farcaster sign in experience for your users
  45. - [Overview](https://docs.neynar.com/docs/how-to-embed-farcaster-frames-in-your-app-with-neynar.md): Host Frames on your product and let users interact with them directly
  46. - [Mutual Follows/Followers](https://docs.neynar.com/docs/how-to-fetch-mutual-followfollowers-in-farcaster.md): Find mutual follows with another Farcaster user
  47. - [User Balances Directly with FID](https://docs.neynar.com/docs/how-to-fetch-user-balance-using-farcaster-fid.md): This guide provides a step-by-step approach to fetching token balances for a user using their Farcaster FID via the Neynar API.
  48. - [Warpcast URLs](https://docs.neynar.com/docs/how-to-get-cast-information-from-warpcast-url.md): Convert Warpcast URL into full cast data from Farcaster network through Neynar
  49. - [Trending Feed on Farcaster](https://docs.neynar.com/docs/how-to-get-trending-casts-on-farcaster.md): Show casts trending on the Farcaster network through Neynar
  50. - [Frame Interactions](https://docs.neynar.com/docs/how-to-handle-frame-interactions-with-the-neynar-api.md): In this guide, we'll go over how to use our `POST frame/action` API to handle frame interactions on your backend.
  51. - [How to Ingest](https://docs.neynar.com/docs/how-to-ingest.md): Simple guide on how to ingest parquet files for Farcaster data
  52. - [SIWN: Connect Farcaster accounts](https://docs.neynar.com/docs/how-to-let-users-connect-farcaster-accounts-with-write-access-for-free-using-sign-in-with-neynar-siwn.md): Connect for free using Sign In with Neynar (SIWN). The app gets read and/or write access, Neynar pays for onchain registration.
  53. - [Neynar SQL Playground](https://docs.neynar.com/docs/how-to-query-neynar-sql-playground-for-farcaster-data.md): Query real time Farcaster data for your data analyses, create and share dashboards
  54. - [Webhooks in Dashboard](https://docs.neynar.com/docs/how-to-setup-webhooks-from-the-dashboard.md): User Neynar dev portal to set up webhooks for your app
  55. - [How to Use the Neynar Feed API](https://docs.neynar.com/docs/how-to-use-the-feed-api-1.md): A guide on how to get feed from the Feed API using fid, fids, and parent_url.
  56. - [Verify Webhooks](https://docs.neynar.com/docs/how-to-verify-the-incoming-webhooks-using-signatures.md): This guide highlights the steps to verify incoming webhooks using signatures
  57. - [HTML & OpenGraph Metadata in Mini Apps](https://docs.neynar.com/docs/html-metadata-in-frames-and-catalogs.md): Neynar's API now supports HTML metadata for mini apps (prev. called Frames) and catalogs, providing rich information about embedded content. This feature allows you to access Open Graph (OG) data and oEmbed information for frames and catalogs, similar to how it works with casts.
  58. - [Username Search](https://docs.neynar.com/docs/implementing-username-search-suggestion-in-your-farcaster-app.md): Show good recommendations when users search for Farcaster users in your app
  59. - [Indexer Service](https://docs.neynar.com/docs/indexer-service-pipe-farcaster-data.md): Pipe Farcaster data, or subsets of it, directly into your db
  60. - [Write Data with Managed Signers](https://docs.neynar.com/docs/integrate-managed-signers.md): Write to Farcaster protocol and let Neynar manage your signers for you
  61. - [Like & Recast](https://docs.neynar.com/docs/liking-and-recasting-with-neynar-sdk.md): Add "like" and "recast" reactions on Farcaster casts
  62. - [Listen for @bot Mentions](https://docs.neynar.com/docs/listen-for-bot-mentions.md): Get notified when someone tags your bot in a cast
  63. - [Make Agents Prompt Transactions](https://docs.neynar.com/docs/make-agents-prompt-transactions.md): Agents prompt transactions to humans with Farcaster frames
  64. - [Farcaster Feed of NFT Owners](https://docs.neynar.com/docs/making-a-farcaster-feed-of-miladies.md): Make a Farcaster feed showing casts from a specific set of users
  65. - [Mutes, Blocks, and Bans](https://docs.neynar.com/docs/mutes-blocks-and-bans.md): Hide users and their activity based on user or developer preference
  66. - [Developer Ecosystem](https://docs.neynar.com/docs/neynar-developer-ecosystem-for-farcaster.md): Building blocks for developing on Farcaster protocol with Neynar infrastructure
  67. - [Set up Neynar with Cursor and MCP server](https://docs.neynar.com/docs/neynar-farcaster-with-cursor.md): Start developing on Farcaster with Neynar and AI enabled Cursor
  68. - [Neynar User Score](https://docs.neynar.com/docs/neynar-user-quality-score.md): Check for quality users using Neynar's user score
  69. - [Webhooks with DCs](https://docs.neynar.com/docs/neynar-webhooks-warpcast-dcs.md): In this guide, we’ll make a webhook which will send a DC to the user based on any action they perform on Farcaster! For this guide, I'll send direct casts to people whose casts include a specific keyword.
  70. - [From Parquet Exports](https://docs.neynar.com/docs/parquet.md): Ingest farcaster data into your database or data warehouse from parquet exports
  71. - [Parquet Schema](https://docs.neynar.com/docs/parquet-schema.md): Schema for data available in parquet ingestion
  72. - [Write Casts to Channel](https://docs.neynar.com/docs/posting-dank-memes-to-farcasters-memes-channel-with-neynars-sdk.md): Write casts to a Farcaster channel with Neynar
  73. - [Rank High Quality Conversations](https://docs.neynar.com/docs/ranking-for-high-quality-conversations.md): Neynar APIs rank high quality casts higher
  74. - [SIWN: React](https://docs.neynar.com/docs/react-implementation.md): In this guide, we'll take a look at how to implement sign-in with neynar in a React app. For this guide, I am going to be using next.js but the same would work for CRA, remix, or anything based on react!
  75. - [Indexer Service Requirements](https://docs.neynar.com/docs/requirements-for-indexer-service.md): Reach out if you have questions
  76. - [Send Notifications to Frame Users](https://docs.neynar.com/docs/send-notifications-to-frame-users.md): This guide walks you through a simple setup for enabling notifications for your Frame
  77. - [SIWN: React Native](https://docs.neynar.com/docs/sign-in-with-neynar-react-native-implementation.md): In this guide, we'll take a look at how to add sign-in with neynar to a React native application!
  78. - [Supercharge EVM & Solana Sign-in](https://docs.neynar.com/docs/supercharge-your-sign-in-with-ethereum-onboarding-with-farcaster.md): Supercharge Sign In with Ethereum and/or Solana in your app with Farcaster profile and social graph data
  79. - [Trending Feed with External Providers](https://docs.neynar.com/docs/trending-feed-w-external-providers.md): Get Farcaster trending casts on a feed with other providers like OpenRank and MBD
  80. - [Sponsor Signers](https://docs.neynar.com/docs/two-ways-to-sponsor-a-farcaster-signer-via-neynar.md): Sponsor it yourself or let Neynar pay for it
  81. - [ETH Address FID Contract](https://docs.neynar.com/docs/verifications-contract.md): Get an addresses' connected fid on-chain.
  82. - [Notifications for FID](https://docs.neynar.com/docs/what-does-dwreths-farcaster-notification-look-like.md): Fetch notifications for any Farcaster user
  83. - [Feed of Given Farcaster FID](https://docs.neynar.com/docs/what-does-vitalikeths-farcaster-feed-look-like.md): Show a personalized feed of casts for a specific user on Farcaster
  84. - [Choose the Right Signer](https://docs.neynar.com/docs/which-signer-should-you-use-and-why.md): Understand the differences between the various ways to manage signers and pick the right one for your app
  85. - [Compute Units Pricing](https://docs.neynar.com/external-link-0.md)
  86. - [NodeJS-SDK](https://docs.neynar.com/external-link-1.md)
  87. - [Frontend React SDK](https://docs.neynar.com/external-link-2.md)
  88. - [OpenAPI Specification](https://docs.neynar.com/external-link-3.md)
  89. - [Example Apps](https://docs.neynar.com/external-link-4.md)
  90. - [null](https://docs.neynar.com/index.md)
  91. - [Buy storage](https://docs.neynar.com/reference/buy-storage.md): This api will help you rent units of storage for an year for a specific FID.
  92. A storage unit lets you store 5000 casts, 2500 reactions and 2500 links.
  93.  
  94. - [Create signer](https://docs.neynar.com/reference/create-signer.md): Creates a signer and returns the signer status. \
  95. **Note**: While tesing please reuse the signer, it costs money to approve a signer.
  96.  
  97. - [Create transaction pay mini app](https://docs.neynar.com/reference/create-transaction-pay-frame.md): Creates a new transaction pay mini app that can be used to collect payments through a mini app
  98. - [Unban FIDs from app](https://docs.neynar.com/reference/delete-bans.md): Deletes a list of FIDs from the app associated with your API key.
  99. - [Unblock FID](https://docs.neynar.com/reference/delete-block.md): Deletes a block for a given FID.
  100. - [Delete a cast](https://docs.neynar.com/reference/delete-cast.md): Delete an existing cast. \
  101. (In order to delete a cast `signer_uuid` must be approved)
  102.  
  103. - [Unmute FID](https://docs.neynar.com/reference/delete-mute.md): Deletes a mute for a given FID. This is an allowlisted API, reach out if you want access.
  104. - [Delete mini app](https://docs.neynar.com/reference/delete-neynar-frame.md): Delete an existing mini app, if it was made by the developer (identified by API key)
  105. - [Delete reaction](https://docs.neynar.com/reference/delete-reaction.md): Delete a reaction (like or recast) to a cast \
  106. (In order to delete a reaction `signer_uuid` must be approved)
  107.  
  108. - [Delete verification](https://docs.neynar.com/reference/delete-verification.md): Removes verification for an eth address for the user \
  109. (In order to delete verification `signer_uuid` must be approved)
  110.  
  111. - [Delete a webhook](https://docs.neynar.com/reference/delete-webhook.md): Delete a webhook
  112. - [Deploy fungible](https://docs.neynar.com/reference/deploy-fungible.md): Creates a new token.
  113. This is an allowlisted API, reach out if you want access.
  114.  
  115. - [Developer hosted frames](https://docs.neynar.com/reference/developer-frames.md): Build your own frames and use Neynar to
  116. - [Fetch all channels with their details](https://docs.neynar.com/reference/fetch-all-channels.md): Returns a list of all channels with their details
  117. - [For user](https://docs.neynar.com/reference/fetch-all-notifications.md): Returns a list of notifications for a specific FID.
  118. - [Fetch authorization url](https://docs.neynar.com/reference/fetch-authorization-url.md): Fetch authorization url (Fetched authorized url useful for SIWN login operation)
  119. - [Banned FIDs of app](https://docs.neynar.com/reference/fetch-ban-list.md): Fetches all FIDs that your app has banned.
  120. - [Blocked / Blocked by FIDs](https://docs.neynar.com/reference/fetch-block-list.md): Fetches all FIDs that a user has blocked or has been blocked by
  121. - [Bulk fetch casts](https://docs.neynar.com/reference/fetch-bulk-casts.md): Fetch multiple casts using their respective hashes.
  122. - [Bulk fetch](https://docs.neynar.com/reference/fetch-bulk-channels.md): Returns details of multiple channels
  123. - [By FIDs](https://docs.neynar.com/reference/fetch-bulk-users.md): Fetches information about multiple users based on FIDs
  124. - [By Eth or Sol addresses](https://docs.neynar.com/reference/fetch-bulk-users-by-eth-or-sol-address.md): Fetches all users based on multiple Ethereum or Solana addresses.
  125.  
  126. Each farcaster user has a custody Ethereum address and optionally verified Ethereum or Solana addresses. This endpoint returns all users that have any of the given addresses as their custody or verified Ethereum or Solana addresses.
  127.  
  128. A custody address can be associated with only 1 farcaster user at a time but a verified address can be associated with multiple users.
  129. You can pass in Ethereum and Solana addresses, comma separated, in the same request. The response will contain users associated with the given addresses.
  130. - [Metrics for casts](https://docs.neynar.com/reference/fetch-cast-metrics.md): Fetches metrics casts matching a query
  131. - [Reactions for cast](https://docs.neynar.com/reference/fetch-cast-reactions.md): Fetches reactions for a given cast
  132. - [On cast](https://docs.neynar.com/reference/fetch-cast-reactions-1.md): Retrieve all reactions (likes or recasts) on a specific cast in the Farcaster network. The cast is identified by its creator's FID and unique hash. This endpoint helps track engagement metrics and user interactions with specific content.
  133. - [By parent cast](https://docs.neynar.com/reference/fetch-casts-by-parent.md): Retrieve all reply casts (responses) to a specific parent cast in the Farcaster network. Parent casts can be identified using either a combination of FID and hash, or by their URL. This endpoint enables traversal of conversation threads and retrieval of all responses to a particular cast.
  134. - [Chronologically](https://docs.neynar.com/reference/fetch-casts-for-user.md): Fetch casts for a given user FID in reverse chronological order. Also allows filtering by parent_url and channel
  135. - [Mentioning an FID](https://docs.neynar.com/reference/fetch-casts-mentioning-user.md): Fetch casts mentioning a user.
  136. - [Open invites](https://docs.neynar.com/reference/fetch-channel-invites.md): Fetch a list of invites, either in a channel or for a user. If both are provided, open channel invite for that user is returned.
  137. - [Fetch members](https://docs.neynar.com/reference/fetch-channel-members.md): Fetch a list of members in a channel
  138. - [For user by channel](https://docs.neynar.com/reference/fetch-channel-notifications-for-user.md): Returns a list of notifications for a user in specific channels
  139. - [Fetch composer actions](https://docs.neynar.com/reference/fetch-composer-actions.md): Fetches all composer actions on Warpcast. You can filter by top or featured.
  140. - [Embedded URL metadata](https://docs.neynar.com/reference/fetch-embedded-url-metadata.md): Crawls the given URL and returns metadata useful when embedding the URL in a cast.
  141. - [Page of events](https://docs.neynar.com/reference/fetch-events.md): Fetch a list of events.
  142. - [By filters](https://docs.neynar.com/reference/fetch-feed.md): Fetch casts based on filters. Ensure setting the correct parameters based on the feed_type and filter_type.
  143. - [By channel IDs](https://docs.neynar.com/reference/fetch-feed-by-channel-ids.md): Fetch feed based on channel IDs
  144. - [By parent URLs](https://docs.neynar.com/reference/fetch-feed-by-parent-urls.md): Fetch feed based on parent URLs
  145. - [For you](https://docs.neynar.com/reference/fetch-feed-for-you.md): Fetch a personalized For You feed for a user
  146. - [Fetch a list of all the FIDs](https://docs.neynar.com/reference/fetch-fids.md): Fetch a list of all the FIDs.
  147. - [Suggest Follows](https://docs.neynar.com/reference/fetch-follow-suggestions.md): Fetch a list of suggested users to follow. Used to help users discover new users to follow
  148. - [For channel](https://docs.neynar.com/reference/fetch-followers-for-a-channel.md): Returns a list of followers for a specific channel. Max limit is 1000. Use cursor for pagination.
  149. - [Mini apps catalog](https://docs.neynar.com/reference/fetch-frame-catalog.md): A curated list of featured mini apps
  150. - [Meta tags from URL](https://docs.neynar.com/reference/fetch-frame-meta-tags-from-url.md): Fetches the mini app meta tags from the URL
  151. - [Relevant mini apps](https://docs.neynar.com/reference/fetch-frame-relevant.md): Fetch a list of mini apps relevant to the user based on casts by users with strong affinity score for the user
  152. - [Casts with mini apps](https://docs.neynar.com/reference/fetch-frames-only-feed.md): Fetch feed of casts with mini apps, reverse chronological order
  153. - [Muted FIDs of user](https://docs.neynar.com/reference/fetch-mute-list.md): Fetches all FIDs that a user has muted.
  154. - [List of mini apps](https://docs.neynar.com/reference/fetch-neynar-frames.md): Fetch a list of mini apps made by the developer (identified by API key)
  155. - [Fetch nonce](https://docs.neynar.com/reference/fetch-nonce.md): Nonce to sign a message
  156. - [List of mini app notification tokens
  157. ](https://docs.neynar.com/reference/fetch-notification-tokens.md): Returns a list of notifications tokens related to a mini app
  158.  
  159. - [For user by parent_urls](https://docs.neynar.com/reference/fetch-notifications-by-parent-url-for-user.md): Returns a list of notifications for a user in specific parent_urls
  160. - [10 most popular casts](https://docs.neynar.com/reference/fetch-popular-casts-by-user.md): Fetch 10 most popular casts for a given user FID; popularity based on replies, likes and recasts; sorted by most popular first
  161. - [Power users](https://docs.neynar.com/reference/fetch-power-users.md): Fetches power users based on Warpcast power badges. Information is updated once a day.
  162. - [Power user FIDs](https://docs.neynar.com/reference/fetch-power-users-lite.md): Fetches power users and respond in a backwards compatible format to Warpcast's deprecated power badge endpoint.
  163. - [To a target URL](https://docs.neynar.com/reference/fetch-reactions-by-target.md): Fetch all reactions of a specific type (like or recast) that target a given URL. This endpoint is useful for tracking engagement with content across the Farcaster network.
  164. - [Relevant followers](https://docs.neynar.com/reference/fetch-relevant-followers.md): Returns a list of relevant followers for a specific FID. This usually shows on a profile as "X, Y and Z follow this user".
  165. - [Relevant followers](https://docs.neynar.com/reference/fetch-relevant-followers-for-a-channel.md): Returns a list of relevant channel followers for a specific FID. This usually shows on a channel as "X, Y, Z follow this channel".
  166. - [Relevant owners](https://docs.neynar.com/reference/fetch-relevant-fungible-owners.md): Fetch a list of relevant owners for a specific FID. This usually shows on a fungible asset page as "X, Y, Z and N others you know own this asset".
  167. - [Replies and recasts](https://docs.neynar.com/reference/fetch-replies-and-recasts-for-user.md): Fetch recent replies and recasts for a given user FID; sorted by most recent first
  168. - [List signers](https://docs.neynar.com/reference/fetch-signers.md): Fetches a list of signers for a custody address
  169. - [Subscribed to](https://docs.neynar.com/reference/fetch-subscribed-to-for-fid.md): Fetch what FIDs and contracts a FID is subscribed to.
  170. - [Subscribers of a user](https://docs.neynar.com/reference/fetch-subscribers-for-fid.md): Fetch subscribers for a given FID's contracts. Doesn't return addresses that don't have an FID.
  171. - [Hypersub subscription check](https://docs.neynar.com/reference/fetch-subscription-check.md): Check if a wallet address is subscribed to a given STP (Hypersub) contract.
  172. - [Subscriptions created by FID](https://docs.neynar.com/reference/fetch-subscriptions-for-fid.md): Fetch created subscriptions for a given FID's.
  173. - [Channels by activity](https://docs.neynar.com/reference/fetch-trending-channels.md): Returns a list of trending channels based on activity
  174. - [Trending feeds](https://docs.neynar.com/reference/fetch-trending-feed.md): Fetch trending casts or on the global feed or channels feeds. 7d time window available for channel feeds only.
  175. - [Token balance](https://docs.neynar.com/reference/fetch-user-balance.md): Fetches the token balances of a user given their FID
  176. - [Member of](https://docs.neynar.com/reference/fetch-user-channel-memberships.md): Returns a list of all channels with their details that an FID is a member of. Data may have a delay of up to 1 hour.
  177. - [Following](https://docs.neynar.com/reference/fetch-user-channels.md): Returns a list of all channels with their details that a FID follows.
  178. - [Fetch UserData for a FID](https://docs.neynar.com/reference/fetch-user-data.md): **Note:** one of two different response schemas is returned based on whether the caller provides the `user_data_type` parameter. If included, a single `UserDataAdd` message is returned (or a `not_found` error). If omitted, a paginated list of `UserDataAdd` messages is returned instead.
  179. - [Followers](https://docs.neynar.com/reference/fetch-user-followers.md): Returns a list of followers for a specific FID.
  180. - [To target FID](https://docs.neynar.com/reference/fetch-user-followers-1.md): Fetch a list of users that are following a user.
  181. - [Following](https://docs.neynar.com/reference/fetch-user-following.md): Fetch a list of users who a given user is following. Can optionally include a viewer_fid and sort_type.
  182. - [From source FID](https://docs.neynar.com/reference/fetch-user-following-1.md): Fetch a list of users that a user is following.
  183. - [Following](https://docs.neynar.com/reference/fetch-user-following-feed.md): Fetch feed based on who a user is following
  184. - [Fetch User Information](https://docs.neynar.com/reference/fetch-user-information.md)
  185. - [User interactions](https://docs.neynar.com/reference/fetch-user-interactions.md): Returns a list of interactions between two users
  186. - [Fetch a list of on-chain events provided by an FID](https://docs.neynar.com/reference/fetch-user-on-chain-events.md): Fetch on-chain events provided by a user.
  187. - [Fetch a list of signers provided by an FID](https://docs.neynar.com/reference/fetch-user-on-chain-signers-events.md): **Note:** one of two different response schemas is returned based on whether the caller provides the `signer` parameter. If included, a single `OnChainEventSigner` message is returned (or a `not_found` error). If omitted, a non-paginated list of `OnChainEventSigner` messages is returned instead.
  188. - [Reactions for user](https://docs.neynar.com/reference/fetch-user-reactions.md): Fetches reactions for a given user
  189. - [By FID](https://docs.neynar.com/reference/fetch-user-reactions-1.md): Fetch reactions by a user.
  190. - [Proof for a username](https://docs.neynar.com/reference/fetch-username-proof-by-name.md): Fetch a proof for a username.
  191. - [Proofs provided by an FID](https://docs.neynar.com/reference/fetch-username-proofs-by-fid.md): Fetch proofs provided by a user.
  192. - [Fetch channels that user is active in](https://docs.neynar.com/reference/fetch-users-active-channels.md): Fetches all channels that a user has casted in, in reverse chronological order.
  193. - [By location](https://docs.neynar.com/reference/fetch-users-by-location.md): Fetches a list of users given a location
  194. - [By FID](https://docs.neynar.com/reference/fetch-users-casts-1.md): Fetch user's casts.
  195. - [Analytics for the mini app](https://docs.neynar.com/reference/fetch-validate-frame-analytics.md): Fetch analytics for total-interactors, interactors, nteractions-per-cast and input-text.
  196. - [All mini apps validated by user](https://docs.neynar.com/reference/fetch-validate-frame-list.md): Fetch a list of all the mini apps validated by a user
  197. - [Provided by an FID](https://docs.neynar.com/reference/fetch-verifications-by-fid.md): Fetch verifications provided by a user.
  198. - [Associated webhooks of user](https://docs.neynar.com/reference/fetch-webhooks.md): Fetch a list of webhooks associated to a user
  199. - [Follow a channel](https://docs.neynar.com/reference/follow-channel.md): Follow a channel
  200. - [Follow user](https://docs.neynar.com/reference/follow-user.md): Follow a user \
  201. (In order to follow a user `signer_uuid` must be approved)
  202.  
  203. - [Fetch fresh FID](https://docs.neynar.com/reference/get-fresh-account-fid.md): Fetches FID to [assign it to new user](https://docs.neynar.com/reference/register-account)
  204. - [Get transaction pay mini app](https://docs.neynar.com/reference/get-transaction-pay-frame.md): Retrieves details about a transaction pay mini app by ID
  205. - [Getting Started with Neynar NodeJS SDK](https://docs.neynar.com/reference/getting-started-with-sdk.md): Easily call Neynar APIs with our nodejs sdk
  206. - [Invite](https://docs.neynar.com/reference/invite-channel-member.md): Invite a user to a channel
  207. - [Check fname availability](https://docs.neynar.com/reference/is-fname-available.md): Check if a given fname is available
  208. - [By FID and Hash](https://docs.neynar.com/reference/lookup-cast-by-hash-and-fid.md): Lookup a cast by its FID and hash.
  209. - [By hash or URL](https://docs.neynar.com/reference/lookup-cast-by-hash-or-warpcast-url.md): Gets information about an individual cast by passing in a Warpcast web URL or cast hash
  210. - [Conversation for a cast](https://docs.neynar.com/reference/lookup-cast-conversation.md): Gets all casts related to a conversation surrounding a cast by passing in a cast hash or Warpcast URL. Includes all the ancestors of a cast up to the root parent in a chronological order. Includes all direct_replies to the cast up to the reply_depth specified in the query parameter.
  211. - [Cast conversation summary](https://docs.neynar.com/reference/lookup-cast-conversation-summary.md): Generates a summary of all casts related to a conversation surrounding a cast by passing in a cast hash or Warpcast URL. Summary is generated by an LLM and is intended to be passed as a context to AI agents.
  212.  
  213. - [By ID or parent_url](https://docs.neynar.com/reference/lookup-channel.md): Returns details of a channel
  214. - [Status by public key](https://docs.neynar.com/reference/lookup-developer-managed-signer.md): Fetches the status of a developer managed signer by public key
  215. - [Event by ID](https://docs.neynar.com/reference/lookup-event.md): Lookup an event by its ID.
  216. - [Sync Methods](https://docs.neynar.com/reference/lookup-hub-info.md): Retrieve hub information.
  217. - [Mini app by UUID or URL](https://docs.neynar.com/reference/lookup-neynar-frame.md): Fetch a mini app either by UUID or Neynar URL
  218. - [Fetch an on-chain ID Registry Event for a given Address](https://docs.neynar.com/reference/lookup-on-chain-id-registry-event-by-address.md): Fetch an on-chain ID Registry Event for a given Address.
  219. - [By FID or cast](https://docs.neynar.com/reference/lookup-reaction-by-id.md): Lookup a reaction by its FID or cast.
  220. - [Status](https://docs.neynar.com/reference/lookup-signer.md): Gets information status of a signer by passing in a signer_uuid (Use post API to generate a signer)
  221. - [By custody-address](https://docs.neynar.com/reference/lookup-user-by-custody-address.md): Lookup a user by custody-address
  222. - [By username](https://docs.neynar.com/reference/lookup-user-by-username.md): Fetches a single hydrated user object given a username
  223. - [By its FID and target FID](https://docs.neynar.com/reference/lookup-user-relation.md): Lookup a link by its FID and target FID.
  224. - [Allocation of user](https://docs.neynar.com/reference/lookup-user-storage-allocations.md): Fetches storage allocations for a given user
  225. - [FID's limits](https://docs.neynar.com/reference/lookup-user-storage-limit.md): Fetch a user's storage limits.
  226. - [Usage of user](https://docs.neynar.com/reference/lookup-user-storage-usage.md): Fetches storage usage for a given user
  227. - [By X username](https://docs.neynar.com/reference/lookup-users-by-x-username.md): Fetches the users who have verified the specified X (Twitter) username
  228. - [Fetch a webhook](https://docs.neynar.com/reference/lookup-webhook.md): Fetch a webhook
  229. - [Mark as seen](https://docs.neynar.com/reference/mark-notifications-as-seen.md): Mark notifications as seen
  230. - [Using Github Copilot](https://docs.neynar.com/reference/migrate-to-neynar-nodejs-sdk-v2-using-github-copilot.md)
  231. - [SDK v1 to v2 migration guide](https://docs.neynar.com/reference/neynar-nodejs-sdk-v1-to-v2-migration-guide.md)
  232. - [Post a mini app action, cast action or a cast composer action](https://docs.neynar.com/reference/post-frame-action.md): Post mini app actions, cast actions or cast composer actions to the server \
  233. (In order to post any of these actions, you need to have an approved `signer_uuid`)
  234.  
  235. The POST request to the post_url has a timeout of 5 seconds for mini apps.
  236.  
  237. - [Signature packet](https://docs.neynar.com/reference/post-frame-action-developer-managed.md): Post a mini app action that has been signed with a developer managed signer
  238.  
  239. The POST request to the post_url has a timeout of 5 seconds.
  240.  
  241. - [Ban FIDs from app](https://docs.neynar.com/reference/publish-bans.md): Bans a list of FIDs from the app associated with your API key. Banned users, their casts and reactions will not appear in feeds.
  242. - [Block FID](https://docs.neynar.com/reference/publish-block.md): Adds a block for a given FID.
  243. - [Post a cast](https://docs.neynar.com/reference/publish-cast.md): Posts a cast or cast reply. Works with mentions and embeds.
  244. (In order to post a cast `signer_uuid` must be approved)
  245.  
  246. - [User actions across apps](https://docs.neynar.com/reference/publish-farcaster-action.md): Securely communicate and perform actions on behalf of users across different apps. It enables an app to send data or trigger actions in another app on behalf of a mutual user by signing messages using the user's Farcaster signer.
  247. - [Send notifications](https://docs.neynar.com/reference/publish-frame-notifications.md): Send notifications to interactors of a mini app
  248.  
  249. - [Submit signed message](https://docs.neynar.com/reference/publish-message.md): Submit a message to the Farcaster network.
  250. - [Publish message](https://docs.neynar.com/reference/publish-message-to-farcaster.md): Publish a message to farcaster. The message must be signed by a signer managed by the developer. Use the @farcaster/core library to construct and sign the message. Use the Message.toJSON method on the signed message and pass the JSON in the body of this POST request.
  251. - [Mute FID](https://docs.neynar.com/reference/publish-mute.md): Adds a mute for a given FID. This is an allowlisted API, reach out if you want access.
  252. - [Create mini app](https://docs.neynar.com/reference/publish-neynar-frame.md): Create a new mini app with a list of pages.
  253. - [Post a reaction](https://docs.neynar.com/reference/publish-reaction.md): Post a reaction (like or recast) to a given cast \
  254. (In order to post a reaction `signer_uuid` must be approved)
  255.  
  256. - [Add verification](https://docs.neynar.com/reference/publish-verification.md): Adds verification for an eth address or contract for the user \
  257. (In order to add verification `signer_uuid` must be approved)
  258.  
  259. - [Create a webhook](https://docs.neynar.com/reference/publish-webhook.md): Create a webhook
  260. - [Quickstart](https://docs.neynar.com/reference/quickstart.md): Start building on Farcaster with Neynar
  261. - [Register new account](https://docs.neynar.com/reference/register-account.md): Register account on farcaster.
  262.  
  263. **Note:** This API must be called within 10 minutes of the fetch FID API call (i.e., /v2/farcaster/user/fid). Otherwise, Neynar will assign this FID to another available user.
  264.  
  265. - [Register New user](https://docs.neynar.com/reference/register-new-user.md): Register new user on Farcaster protocol
  266. - [Register Signed Key](https://docs.neynar.com/reference/register-signed-key.md): Registers an signed key and returns the developer managed signer status with an approval url.
  267. - [Register Signed Key](https://docs.neynar.com/reference/register-signed-key-for-developer-managed-signer.md): Registers an app FID, deadline and a signature. Returns the signer status with an approval url.
  268. - [Remove user](https://docs.neynar.com/reference/remove-channel-member.md): Remove a user from a channel or a user's invite to a channel role
  269. - [Accept or reject an invite](https://docs.neynar.com/reference/respond-channel-invite.md): Accept or reject a channel invite
  270. - [Search for casts](https://docs.neynar.com/reference/search-casts.md): Search for casts based on a query string, with optional AND filters
  271. - [Search by ID or name](https://docs.neynar.com/reference/search-channels.md): Returns a list of channels based on ID or name
  272. - [Search for Usernames](https://docs.neynar.com/reference/search-user.md): Search for Usernames
  273. - [Unfollow a channel](https://docs.neynar.com/reference/unfollow-channel.md): Unfollow a channel
  274. - [Unfollow user](https://docs.neynar.com/reference/unfollow-user.md): Unfollow a user \
  275. (In order to unfollow a user `signer_uuid` must be approved)
  276.  
  277. - [Update Follow / Unfollow](https://docs.neynar.com/reference/update-follow-unfollow.md): Follow a new user or unfollow an existing user, for a given Farcaster user
  278. - [Update mini app](https://docs.neynar.com/reference/update-neynar-frame.md): Update an existing mini app with a list of pages, if it was made by the developer (identified by API key)
  279. - [Update user profile](https://docs.neynar.com/reference/update-user.md): Update user profile \
  280. (In order to update user's profile `signer_uuid` must be approved)
  281.  
  282. - [Overview](https://docs.neynar.com/reference/update-user-profile-1.md): Update profile information and connected addresses
  283. - [Update a webhook](https://docs.neynar.com/reference/update-webhook.md): Update a webhook
  284. - [Update webhook status](https://docs.neynar.com/reference/update-webhook-active-status.md): Update webhook active status
  285. - [Validate mini app action](https://docs.neynar.com/reference/validate-frame-action.md): Validates a mini app against by an interacting user against a Farcaster Hub \
  286. (In order to validate a mini app, message bytes from Frame Action must be provided in hex)
  287.  
  288. - [Validate signed message](https://docs.neynar.com/reference/validate-message.md): Validate a message on the Farcaster network.
  289. - [Rate Limits](https://docs.neynar.com/reference/what-are-the-rate-limits-on-neynar-apis.md): Rate limits are set per subscription plan
  290.  
  291.  
  292. ## Optional
  293.  
  294. - [Status](https://status.neynar.com/)
  295. - [Blog](https://neynar.com/blog)
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